Dear [Friend's Name],
I hope this letter finds you in good health and spirits. I wanted to invite you to my birthday party, which will be held on [Date] at [Time] at my house.
I'm really looking forward to celebrating my birthday with my closest friends, and I would be thrilled if you could join us. We'll have food, drinks, and some fun activities planned, so I'm sure it will be a great time.
It would mean a lot to me if you could make it. I always appreciate your company and I think you would really enjoy the party.
If you can come, please let me know so I can make sure to include you in the final headcount. And if you have any dietary restrictions or preferences, please let me know so I can make sure we have something for you to eat.
I'm excited to celebrate with you and create some new memories. Looking forward to hearing back from you soon.
Best regards,
[Your Name]
